xtrojka-1.2.3-6 includes a file
/var/lib/games/xtrojka.score; it's apparently supposed to be
.scores. When I ran xtrojka, it spat out a warning "can't
stat /var/lib/games/xtrojka.scores", over and over again. I
renamed the file from .score to .scores and it was fine.
*** This bug has been marked as a duplicate of 2454 ***